<template>
    <div class="mod-config">

        <el-form :inline="true" :model="dataForm" @keyup.enter.native="getDataList()">
            <el-form-item>
                <el-input v-model="dataForm.key" placeholder="参数名" clearable></el-input>
            </el-form-item>
            <el-form-item>
                <el-button @click="getDataList()">查询</el-button>
                <el-button v-if="isAuth('article:article:save')" type="primary" @click="addOrUpdateHandle()">新增
                </el-button>
                <el-button v-if="isAuth('article:article:delete')" type="danger" @click="deleteHandle()"
                           :disabled="dataListSelections.length <= 0">批量删除
                </el-button>
            </el-form-item>
        </el-form>

        切换文章：
        <el-select v-model="articleId" filterable placeholder="请选择" @change="articleListChange">
            <el-option
                    v-for="item in articleList"
                    :key="item.id"
                    :label="item.title"
                    :value="item.id">
            </el-option>
        </el-select>

        <h3>
            文章名：<el-tag>{{article.title || '未选择文章'}}</el-tag>
        </h3>

        <el-table
                :data="dataList"
                border
                v-loading="dataListLoading"
                @selection-change="selectionChangeHandle"
                style="width: 100%;">
            <el-table-column
                    type="selection"
                    header-align="center"
                    align="center"
                    width="50">
            </el-table-column>
            <el-table-column
                    prop="chapterName"
                    header-align="center"
                    align="center"
                    label="章节名">
            </el-table-column>
            <el-table-column
                    prop="content"
                    header-align="center"
                    align="center"
                    label="内容">
                <template slot-scope="scope">
                    <el-button type="text" @click="open(scope.row.title,scope.row.content)">查看文章</el-button>
                </template>
            </el-table-column>
            <el-table-column
                    prop="isShow"
                    header-align="center"
                    align="center"
                    label="是否展示">

                <template slot-scope="scope">
                    <el-switch
                            v-model="scope.row.isShow"
                            :active-value="1"
                            :inactive-value="0"
                            active-color="#13ce66"
                            inactive-color="#ff4949"
                            @change="switchChange(scope.row.id,scope.row.isShow)">
                    </el-switch>
                </template>

            </el-table-column>
            <el-table-column
                    prop="isShow"
                    header-align="center"
                    align="center"
                    label="序号">
            </el-table-column>
            <el-table-column
                    prop="watchTime"
                    header-align="center"
                    align="center"
                    label="浏览次数">
            </el-table-column>

            <el-table-column
                    fixed="right"
                    header-align="center"
                    align="center"
                    width="150"
                    label="操作">
                <template slot-scope="scope">
                    <el-button type="text" size="small" @click="addOrUpdateHandle(scope.row.id)">修改</el-button>
                    <el-button type="text" size="small" @click="deleteHandle(scope.row.id)">删除</el-button>
                </template>
            </el-table-column>
        </el-table>
        <el-pagination
                @size-change="sizeChangeHandle"
                @current-change="currentChangeHandle"
                :current-page="pageIndex"
                :page-sizes="[2,10, 20, 50, 100]"
                :page-size="pageSize"
                :total="totalPage"
                layout="total, sizes, prev, pager, next, jumper">
        </el-pagination>

        <!-- 弹窗, 新增 / 修改 -->
        <add-or-update v-if="addOrUpdateVisible" ref="addOrUpdate" @refreshDataList="getDataList"></add-or-update>


        <el-dialog
                :title="article.title"
                :visible.sync="articleOpenVisible"
                width="80%"
                center>
            <span v-html="showChapterContent"></span>
            <span slot="footer" class="dialog-footer">
                <el-button @click="articleOpenVisible = false">取 消</el-button>
            </span>
        </el-dialog>

    </div>
</template>

<script>
    import AddOrUpdate from './chapter-add-or-update'

    export default {
        data() {
            return {
                dataForm: {
                    key: ''
                },
                dataList: [],
                pageIndex: 1,
                pageSize: 2,
                totalPage: 0,
                dataListLoading: false,
                dataListSelections: [],
                addOrUpdateVisible: false,

                articleList: [],
                articleId: '', //当前选中ID
                article: {}, //当前文章

                articleOpenVisible: false,
                showChapterContent: {}
            }
        },
        components: {
            AddOrUpdate
        },
        activated() {
            this.initArticleData();
        },
        methods: {
            // 获取数据列表
            getDataList() {
                this.dataListLoading = true
                this.$api.Chapter.list({
                    'page': this.pageIndex,
                    'limit': this.pageSize,
                    'key': this.dataForm.key,
                    'infoId': this.article.id,
                }).then((data) => {
                    if (data && data.code === 0) {
                        this.dataList = data.page.list
                        this.totalPage = data.page.totalCount
                        this.addOrUpdateVisible = false
                    } else {
                        this.dataList = [];
                        this.totalPage = 0
                    }
                    this.dataListLoading = false
                })
            },
            // 每页数
            sizeChangeHandle(val) {
                this.pageSize = val
                this.pageIndex = 1
                this.getDataList()
            },
            // 当前页
            currentChangeHandle(val) {
                this.pageIndex = val
                this.getDataList()
            },
            // 多选
            selectionChangeHandle(val) {
                this.dataListSelections = val
            },
            // 新增 / 修改
            addOrUpdateHandle(id) {
                this.addOrUpdateVisible = true
                this.$nextTick(() => {
                    this.$refs.addOrUpdate.init(id, this.article.id)
                })
            },
            // 删除
            deleteHandle(id) {
                var ids = id ? [id] : this.dataListSelections.map(item => {
                    return item.id
                });
                this.$confirm(`确定对[id=${ids.join(',')}]进行[${id ? '删除' : '批量删除'}]操作?`, '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    this.$api.Chapter.del(ids).then((data) => {
                        if (data && data.code === 0) {
                            this.$message({
                                message: '操作成功',
                                type: 'success',
                                duration: 1500,
                                onClose: () => {
                                    this.getDataList()
                                }
                            })
                        } else {
                            this.$message.error(data.msg)
                        }
                    })
                })
            },

            // 上传文件
            uploadHandle() {
                this.uploadVisible = true
                this.$nextTick(() => {
                    this.$refs.upload.init()
                })
            },

            //文章展示
            open(title, content) {
                this.articleOpenVisible = true;
                this.showChapterContent = content;
            },

            //初始化文章数据
            initArticleData() {
                this.$api.Info.listAll().then((data) => {
                    if (data && data.code === 0) {
                        this.articleList = data.infoList;

                        //设定文章初始Id值
                        if(!this.article.id) {
                            this.article = this.articleList[0];
                            this.articleId = this.article.id;
                        }
                        this.getDataList();
                    }
                });
                if (this.$route.query.article && this.$route.query.article.title) {
                    this.article = this.$route.query.article;
                    this.articleId = this.article.id;

                    //清理原来的值
                    this.addOrUpdateVisible = false;
                }
            },
            //切换文章触发
            articleListChange(articleId) {
                let articleList = this.articleList.filter(article => article.id == articleId);
                this.article = articleList[0];
                this.getDataList();
            },

            //展示开关变化
            switchChange(id, isShow) {
                let formData = {
                    id,
                    isShow
                }
                this.$api.Chapter.update(formData).then(res => {
                    if (res.code == 0) {
                        this.$message.success("修改成功")
                    } else {
                        this.$message.error(res.msg)
                    }
                })
            },
        },
    }
</script>
